Seiko Cal. 6657 - 825

This Quartz model from 1978 features a 40mm Two-Tone case. The Fixed bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-5e8db1aeaf88]

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1978

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